150m long train takes 10s to pass a man who is going in the same direction at the speed of 2kmph. What is the speed of the train?
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Updated on : 2022-09-05
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Correct option is B)
Let the speed of the train be xkmph
Length of the train =150m=1000150=203km and time taken to cross the man = 10 seconds = 60×6010 Relative speed = (x−2)kmph (Both are moving in same direction) We know that, Relative speedLength of the train= Time taken to cross the man Relative speed = 20×13×360 x−2=20×13×360 x=54+2=56kmph Hence, speed of train is 56kmph.